Improvement in wire-stretchers



A. R. GARVER & H. HEMBNWAY. Wire-Stretcher.

No. 222,689. Patented Dec. 16, |879.

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N.PETRS, PHOTO-LJTHOGRAPNER, WASHINGTON. D L:4

UNITED STATES PATENT OEEIcE.`

ALFRED R. GARVER AND HANEY HEMENWAY, OF COLORADO SPRINGS,

COLORADO.

IMPROVEMENT IN WIRE-STRETCHERS.

Specification forming part of Letters Patent No. 222.689, dated December 16, 1879 application led May 6, 1879. V

To all whom it may concern:

Be it known that we, ALFRED R. GARVER and HANEY HEMENWAY, of Colorado Springs, in the county1 of El Paso and State ot Colorado, have invented a new and Improved Wire- Stretcher, of which the following is a specification.

The invention consists in combining a spring having a pawl and a T-lever with the ratchet on spool, and in combining with a lframe having a slot at one end and a median spool a ribbon of metal and a head, to connect the spool and gripers, as hereinafter described.

frame of the stretcher, having ashaft, B, jour naled in it, carrying a spool, C, between the side bars ofthe frame. One end of the spool is provided with ratchet-teeth a, engaged by a pawl, b, projecting from the spring c, attached to the outside ot' the side bar and working over the shaft B. A T-lever, d, pivoted at one end to the side bar, has its free end in position to be pushed between the side bar andthe spring, and thus draw the pawls away from the ratchet.

A slightly wedge-shaped segment, e, is cut out of the barrel of the spool, so as to form a slot in the barrel. The ends of the segment and those of the slot are correspondingly bcveled, so as to form a dovetailed joint.

A metal ribbon, D, has its outer end attached to a head, E, while its opposite end is passed through a slot, f, in the end ofthe frame, and thence to the spool, where its end is clasped between the segment and the. harrel ot the spool, as shown in Fig. 2, and is thus securely held, as the segment can be wedged tightly in the slot.

On the head E and the opposite end of the frame are gripers composed of grooved rollers g and spring-cams h, with serrated faces and levers toi-operating them. The spool and shaft are turned by a crank, F.

The opera-tion ofthe stretcheris as follows: p

The ends of two sections are caught by the gripers at each end, the ribbon D being unwound from the spool and drawn out to enable the gripers on the head E to reach to the end ofthe wire at that end. The lever d is now drawn up so as to let the pawl b engage the ratchet. The crank is now turned, winding the metal ribbon D on the spool, thus drawing the wire toward lthe implement and stretchingit. The pawl and ratchet of course prevent any back action until the wire is tied. Having thus described our invention, we claim as new and desire to secure by Letters Patent- The combination, in a \virestretcher,'of the spring c, having pawl b, and the T-lever d, with a spool having ratchet a, as and for the purpose described.

ALFRED REYNOLDS GARVER'. HANEY HEMENWAY.

Witnesses:

FRANK HEMENWAY, ADNEY HEMENWAY. 

